Place jackfruit in a pressure pan with turmeric powder, salt and 1 cup water. Cook for 1 or 2 whistlesand turn off the heat. remove from cooker, drain and crush jackfruit with a ladle into small shreds.
Blend in ground paste and set aside.
Heat oil for tempering in a frying pan over moderate heat. Add remaining ingredients for tempering in the order given. When mustard seeds splutter, add, onions, jackfruit, Stir-fry for 3-4 minutes till mixture is dry
Serve hot as a side dish.

Note: 500 gms of tender jackfruit is needed to get 3 cups of cleaned and chopped jackfruit.